نتایج جستجو برای: direct heritability

تعداد نتایج: 434954  

Journal: :Journal of dairy science 2007
J M Hickey M G Keane D A Kenny A R Cromie P R Amer R F Veerkamp

Calving difficulty is a trait that greatly affects animal welfare, herd profitability, and the amount of labor required by cattle farmers. It is influenced by direct and maternal genetic components. Selection and breeding strategies can optimize the accuracy of genetic evaluations and correctly emphasize calving difficulty in multiple-trait indices provided there are accurate estimates of genet...

Journal: :Agricultural Science Digest – A Research Journal 2023

Background: Rice is the staple food for billions of people globally and contains numerous essential nutrients. Among nutrients, zinc iron are vital several growth metabolisms in plants humans. Therefore, deficiency these nutrients causes hidden hunger. However, understandingthe genetic variability rice germplasm required improvement grain yield, yield contributing nutritional traits. The presen...

Journal: :Agronomski glasnik 2021

Yard long bean (Vigna unguiculata var. sesquipedalis L.) is one of the important leguminous vegetables in Bangladesh. However, yield this vegetable much lower Bangladesh compared to other yard beangrowing countries. Therefore, it crucial improve vegetable. In present study, genetic variability, heritability, character association and diversity were evaluated on randomized complete block design ...

Journal: :Agronomy 2023

In the West African sub-region, intercropping is a critical element in cowpea product profiles. This study aimed to investigate impact of with pearl millet on genetic correlations, heritability, and response selection. Thirty-five genotypes one variety were used create three cropping patterns: sole cowpea, 1:1 (one row cowpea), 2:4 (two rows four cowpea). Split-plot experiments conducted for tw...

2016
John M Findlay Mark R Middleton Ian Tomlinson

Barrett's oesophagus (BO) is a common condition, predisposing strongly to the development of oesophageal adenocarcinoma (OAC). Consequently, there has been considerable effort to determine the processes involved in the development of BO metaplasia, and ultimately develop markers of patients at risk. Whilst a number of robust acquired risk factors have been identified, a genetic component to the...

Journal: :Pain 2015
Zina Trost Eric Strachan Michael Sullivan Tine Vervoort Ally R Avery Niloofar Afari

This study used a twin paradigm to examine genetic and environmental contributions to pain catastrophizing and the observed association between pain catastrophizing and cold-pressor task (CPT) outcomes. Male and female monozygotic (n = 206) and dizygotic twins (n = 194) from the University of Washington Twin Registry completed a measure of pain catastrophizing and performed a CPT challenge. As ...

Journal: :Psychological review 1994
U Bronfenbrenner S J Ceci

In response to Anastasi's (1958) long-standing challenge, the authors propose an empirically testable theoretical model that (a) goes beyond and qualifies the established behavioral genetics paradigm by allowing for nonadditive synergistic effects, direct measures of the environment, and mechanisms of organism-environment interaction, called proximal processes, through which genotypes are trans...

Journal: :Cancer research 2006
Xifeng Wu Margaret R Spitz Christopher I Amos Jie Lin Lina Shao Jian Gu Mariza de Andrade Neal L Benowitz Peter G Shields Gary E Swan

Despite numerous studies showing that mutagen sensitivity is a cancer predisposition factor, the heritability of mutagen sensitivity has not been clearly established. In this report, we used a classic twin study design to examine the role of genetic and environmental factors on the mutagen sensitivity phenotype. Mutagen sensitivity was measured in peripheral blood lymphocytes from 460 individua...

2012
F.W.C. Neser J. B. van Wyk P. Lubout

_____________________________________________________________________________ Abstract Directand maternal heritabilities were estimated for weight traits in Brangus cattle using random regression models. After editing, 54 924 records, from birth(BW) to mature weight (MW) from 21 673 animals were selected for analysis. The data, which covered a period of 8 generations (1985 to 2010), were transf...

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